Prepare for next version

Change-Id: I6feb8d5b478a73e9f6cf80796bde72a098bb73a6
diff --git a/DESCRIPTION b/DESCRIPTION
index d0ec111..e2efcb3 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: RKorAPClient
 Type: Package
 Title: 'KorAP' Web Service Client Package
-Version: 0.5.8
+Version: 0.5.8.9001
 Authors@R:
     c(person(given = "Marc",
              family = "Kupietz",